• 한국작물학회지
• /
• 제26권3호
• /
• pp.243-250
• /
• 1981

파종기이동에 따른 콩, 팥, 녹두의 개화기분포와 결협율의 변이를 알기 위하여 중부지방에서 널리 재배되고 있는 품종 하나씩을 공시, 5월 10일, 6월9일, 7월 9일 파종구 및 5월 10일 파종후 단일 처리한 구를 두어 시험한 결과를 요약하면 아래와 같다. 1. 각 처리별 개화까지의 일수, 개화기간 그리고 개화시에서 정엽출현까지의 일수를 비교한 결과 공시된 중 품종은 유한신육형에 그리고 팥과 녹두는 무한신육형에 속하는 것이었다. 2. 주당개화수 및 성숙협수는 3작물이 모두 7월9일 파종구 및 단일처리구에서 현저히 감소되었으나 결협율은 파종기에 따라서 일정한 경향 없이 콩 38\sim48%, 팥 23\sim34%, 그리고 녹두 46\sim60%였는데 콩과 녹두는 낙화 그리고 팥은 낙협이 각각의 결협률에 더 큰 영향을 주었다. 3. 콩은 어느 파종구에서든지 1회의 개화성기를 보인 반면 팥과 녹두는 극만파구민 7월9일 파종구를 제외하고는 2\sim3회의 개화성기를 보였고 개화최성기는 콩이 개화시로부터 10일 이내에 왔으나 팥과 녹두는 파종기에 따라서 개화시로부터 25\sim45일 사이에 왔다. 4. 개화기에 따른 성숙협수의 분포는 모든 처리구에서 개화분포와 비슷한 경향을 보였고 콩의 결협율은 개화최성기 직후에 핀 꽃들이 가장 낮았으며 그 이전 및 이후에 핀 꽃들이 점점 높은 값을 보였다. 팥과 녹두의 결협율은 각 개화성기 직전에 된 꽃들이 높았고 그 직후에 핀 꽃들이 낮은 값을 보였는데 7월 9일 파종구는 3작물에서 모두 시기적으로 늦게 핀 꽃일수록 결협률이 낮아졌다. 5. 중은 모든 파종구에서 정엽출현일을 전후로 한 5일 동안에 개화최성기를 보였으며 정엽전개 이전에 핀 꽃 및 여기서 생긴 성숙협수가 더 큰 비중을 차지한 반면 팥과 녹두는 정엽출현기와 개화 또는 결협간에 아무런 관계도 없었고 정엽전관 이후에 더 많은 꽃을 피웠다.

• 한국자원식물학회지
• /
• 제8권2호
• /
• pp.143-151
• /
• 1995

The development of medicinal plants for cut plants and landscape plants were conducted through the literiture survey. The results were as follows: We selected 38 species of medicinal plants including 7 medicinal woody plants for cut plant and landscape plants from 450 medicinal plants. There were 8 species of Compositae, 4 species Ranunculaceae, 3 species Rosaceae and Umbelliferae, 2 species Polygonaceae and Campanulaceae respectively. The anthesis of Cornus officinalis, Magnolia denudata, Forsythia koreana of medicinal woody plants flowering before leaf spreading come to early than the anthesis of other medicinal plants. There were 4 species(11%) over 10cm of the flower diameter, 6 species(16%) over 5cm below 10cm, 19 species(50%) over 1cm below 5cm and 9 species(24%) 1cm below. In terms of flower color, 11 species(29%) were white, 9 species(24%) yellow, 6 pecies(16%) red, 5 species(13%) violet and 3 species(8%) were blue aided violet. In terms of the flowering by month, 12 species(32%) on July, 9 species(24%) on May, 6 species(16%) on June and August respectively, and 3 species(8%) on March. The most medicinal plants were propagated by division and seeding easily, but woody medicinal plants of 7 species of this study were propagated by cutting and grafting easily. The percentage of usage of parts of medicinal plants including woody medicinal plants was that roots were 20 species(53%), flowers 6 species(16%), fruits and all part of medicinal plants were 4 species(11%), and seeds and stem including leaves 2 species(5%) respectively.

• 한국작물학회지
• /
• 제20권
• /
• pp.95-99
• /
• 1975

해바라기에 있어서 일장반응의 품종간차이를 알고자 1974년 7월부터 10월까지 조중만생종 3개 품종을 폿트에 파종하여 옥내인 온실과 옥외인 자연상태에서 단일 및 장일의 일장처리를 하여 각 품종의 개화반응을 조사한 결과를 요약하면 다음과 같다. 1. 조생종인 Peredovic의 개화기는 8시간 및 12시간구에서 비슷하고 16시간구보다 10일 단축되였으나 각 일장처리구 모두 실내가 옥외보다 11∼15일 빨랐다. 2. 중생종인 Hungary의 개화기는 옥내에서 각 일장처리구가 거의 비슷하였으나 옥외에서는 12시간구가 8시간구 및 16시간구보다 7∼11일 빨랐다. 3. 만생종인 군포종의 개화기는 제일 늦었으나 8시간 및 12시간구에서는 비슷하고 16시간구보다 14일 단축되였으나 옥내가 옥외보다 10∼21일 빨랐다. 4. 조생종인 Peredovic은 옥내외의 적산온도차가 적어 일장보다 온도가 그리고 중만생종인 Hungary와 군포종은 옥내외 적산온도차가 커 온실보다 일장에 더 예민한 것 같다. 5. 해바라기의 개화반응은 숙기의 조만에 거의 관계없이 8∼12시간의 단일하에서 개화일수가 단축되고 16시간구에서 연장되었으며 그 정도는 품종간 차이를 보였다.

• Journal of Applied Biological Chemistry
• /
• 제42권1호
• /
• pp.40-44
• /
• 1999

The in vitro antioxidative activities of the 33 plant-derived essential oils and 37 phytochemicals including 3 Mentha arvensis leaf-, 2 Thymus vulgaris leaf- and 2 Syzygium aromaticum flower-derived isolates were determined by the inhibition of linoleic acid autoxidation, the generation of superoxide anion and scavenging of DPPH radical. They were then compared to those of the widely used plant-derived antioxidants (pyrogallol and quercetin) and synthetic antioxidant BHT. At a concentration of 0.01%, potent antioxidative effect was observed in the essential oils from Cinnamomum cassia roots, Mentha arvensis leaves, Ginkgo biloba fruits, and Syzygium aromaticum flowers. Of the phytochemicals used, eugenol and isoeugenol at 0.01% showed potent antioxidative activity, and their activities were comparable to those of pyrogallol, quercetin, and BHT. The Cinnamomum root-, the Mentha leaf-, the Ginkgo fruit-, and the Syzygium flower-derived materials may be a good source for an alternative to the currently used antioxidants.

• 한국응용곤충학회지
• /
• 제41권3호
• /
• pp.177-181
• /
• 2002

국화에서 꽃노랑총채벌레는 4월 상순부터 수확기까지 계속하여 황색끈끈이트랩에 유인되었고, 봄재배에서 4월 하순부터 6월 중순, 가을재배에서는 정식 직후인 8월 중순부터 9월 상순까지 밀도가 높았으며, 봄재배의 피해엽율이 45%수준 가을재배는 35%수준이었다. 이러한 경향은 PVC하우스와 노지 모두 비슷하였으나 꽃당 충수는 노지보다 PVC하우스에서 약간 많았고, 무방제의 경우는 관행방제에 비하여 3배 이상 충의 밀도가 높았다. 꽃노랑총채벌레에 의한 피해엽은 5월 중순부터 관찰되기 시작하여 국화가 생육함에 따라 함께 증가하는 경향으로, 품종에 따라 약간 차이가 있었으나 모두 정의 상관 관계($R^2$ = 0.9200-0.9887$^{**}$ , p>0.01)가 있었다.

• 한국초등과학교육학회지:초등과학교육
• /
• 제25권3호
• /
• pp.231-243
• /
• 2006

The purpose of this study was to investigate misconceptions regarding the structure of flowers and the function of the course based on the 'Flower' section of 5th grade elementary school science courses. It also sought to investigate how misconceptions are changed before and after the application of a Driver learning model, and finally analysing any differences in the correction of misconceptions. A questionnaire was created for 199 5th grade elementary school pupils. The major results before and after using an applied Driver learning mode teaching plan are as follows: In the response for questions, 13.6% and 14.5% of misconceptions were corrected for male and female pupils, respectively. For rural and urban pupils, 14.8% and 11.2% of misconceptions were corrected, respectively. In the comparison of male and female pupils according to the reasons for selection of responses before and after using an applied Driver learning model teaching plan, 27.8% of male and 30.0% of female pupils scientific conceptions showed improvement. For rural and urban schools, 26.6% and 32.2% of scientific conceptions were improved, respectively. Data from this study may help teachers to reconsider their own conceptions regarding the study of the flower as it is presently conducted in elementary school.

• 한국식생활문화학회지
• /
• 제27권3호
• /
• pp.316-323
• /
• 2012

This study examined the prevalence of the traditional pressed sweet called dasik recorded in 15 Joseon dynasty (1392-1909) royal palace studies. The ingredients used in Dasik during the Joseon dynasty were categorized into 43% cereal powders, 18.6% tree fruits, 17.4% flower powders, 11.6% root clods, 8.2% dry-fish beef powders, and 1.2% vegetables. In the early era of the Joseon dynasty there were no reports of dasik in the royal palace. In the middle era of the Joseon dynasty there was one report of dasik in the royal palace. But in the late era of the Joseon dynasty there were 85 kinds of dasik reported in the royal palace. The most common ingredients were, most common first, Song-wha (松花), Huek-im (黑荏), Hwang-yul (黃栗), Nok-mal (菉末), and chungtae (靑太). The appearance and taste of dasik varied greatly throughout the time period, eventually resulting in nutrient supplementation. This observation may be associated with the commercial industrial development that prevailed during the late Joseon dynasty. Further investigation will be conducted on the recipes and ingredients recorded in these old studies to develop a standardized recipe for the globalization of dasik.

• 혜화의학회지
• /
• 제19권1호
• /
• pp.49-54
• /
• 2010

Inhalational drug is an attractive modality for local therapy of pulmonary diseases as well as systemic drug delivery. Flower of Lonicera japonica (FLJ) and flower of Tussilag farfara (FTF) are medicinal herbs for respiratory disease in traditional Korean medicine. As a preliminary study for effective inhalable formulation of FLJ and FTF, this study was to provide the toxicity and anti-inflammatory effect on murine macrophages. The dried FLJ and FTF were extracted with distilled water, filtered and freeze-dried. After treatment with FLJ and FTF extract on RAW 264.7 cells, the cell viabilities were measured by MTT assay. FLJ and FTF did not show cytotoxicity on RAW 264.7 cells. LPS stimulated RAW 264.7 cells were treated with 3 and $30\;{\mu}g/ml$ of FLJ or FTF. FLJ and FTF did not inhibit TNF-a and IL-6 secretion in both concentration of treatment. We suggest that FLJ and FTF may be useful drugs for respiratory disease. Future work will focus on the physical characteristics for inhalable formulation.

• 한국유기농업학회지
• /
• 제19권spc호
• /
• pp.203-205
• /
• 2011

Investigation on oriental melon was carried out for 30 minutes starting at 7 PM every day from March 21 to May 24 to find out the effect of light emitting diode on seedling quality, grafting, growth and flowering of oriental melon. According to the result of the investigation, plant height was longer in Blue, Infrared, Red+Blue and Red treatment and leaf number was higher in Blue, Red+Blue and Infrared treatment than those of control. No big difference was identified between control and Yellow, Green, Ultraviolet treatments. Grafting rate was high in Green, Red+Blue and Green treatment. The number of flower every week in control was nine, the number was almost 1 higher in White and Ultraviolet A treatments, but it was 1 to 4 lower in the rest of treatments. The number of female flowers of control was 10, however, it was 21 in Infrared treatment, 17 in White, 15 in Ultraviolet, 13 in Red+lnfrared, 12 in Blue and Red+Blue, 11 in Yellow and 8 in Green.

• Horticulture, Environment, and Biotechnology : HEB
• /
• 제59권6호
• /
• pp.899-907
• /
• 2018

The methanol extracts of flowers obtained from 67 plant species were screened for their inhibitory activity on aldose reductase (AR). Alnus japonica, Aster spathulifolius, Chionanthus retusus, Morus bombycis, Crysanthemum boreale, Persicaria tinctoria, Platycarya strobilacea, and Serratula coronata var. insularis exhibited potent aldose reductase inhibitory (ARI) activity. HPLC-UV analysis of quercetin, an AR inhibitory flavonoid, was performed on extracts showing strong ARI activity. Quercetin was detected in C. retusus, C. boreale, P. tinctoria, and S. coronata var. insularis at concentrations of 1.33, 1.56, 0.82, and $3.37mg\;g^{-1}$ extract, respectively, indicating that quercetin contributed to the ARI activity of these extracts. In the samples in which quercetin was absent, other compounds may be responsible for their potent ARI activity. These results serve as a basis for further studies regarding the bioactive components responsible for the inhibitory effects of various flower extracts on AR activity.